(19)
(11) EP 1 020 017 A1

(12)

(43) Date of publication:
19.07.2000 Bulletin 2000/29

(21) Application number: 98950806.4

(22) Date of filing: 29.09.1998
(51) International Patent Classification (IPC)7H02P 5/178, H02P 7/298
(86) International application number:
PCT/US9820/546
(87) International publication number:
WO 9917/436 (08.04.1999 Gazette 1999/14)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 30.09.1997 US 60430 P
30.09.1997 US 60460 P

(71) Applicant: CROWN EQUIPMENT CORPORATION
New Bremen,Ohio 45869 (US)

(72) Inventors:
  • LANKIN, Robert, Gordon
    Newton, Ontario N0K 1R0 (CA)
  • HAMMER, Joseph, K.
    St. Marys, OH 45885 (US)
  • HARMAN, John, R.
    Versailles, OH 45380 (US)
  • KILLIAN, Christopher, M.
    New Bremen, OH 45869 (US)
  • STANG, David, B.
    Troy, OH 45373 (US)

(74) Representative: Cummings, Sean Patrick et al
David Keltie Associates,12 New Fetter Lane
London EC4A 1AG
London EC4A 1AG (GB)

   


(54) SEPARATELY EXCITED DC MOTOR WITH BOOST AND DE-BOOST CONTROL